1 files changed, 349 insertions, 0 deletions
diff --git a/third_party/boringssl/src/crypto/bio/file.c b/third_party/boringssl/src/crypto/bio/file.c
new file mode 100644
index 0000000000..2d3ccfead9
--- /dev/null
+++ b/third_party/boringssl/src/crypto/bio/file.c
@@ -0,0 +1,349 @@
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young (eay@cryptsoft.com)"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#if defined(__linux) || defined(__sun) || defined(__hpux)
+/* Following definition aliases fopen to fopen64 on above mentioned
+ * platforms. This makes it possible to open and sequentially access
+ * files larger than 2GB from 32-bit application. It does not allow to
+ * traverse them beyond 2GB with fseek/ftell, but on the other hand *no*
+ * 32-bit platform permits that, not with fseek/ftell. Not to mention
+ * that breaking 2GB limit for seeking would require surgery to *our*
+ * API. But sequential access suffices for practical cases when you
+ * can run into large files, such as fingerprinting, so we can let API
+ * alone. For reference, the list of 32-bit platforms which allow for
+ * sequential access of large files without extra "magic" comprise *BSD,
+ * Darwin, IRIX...
+ */
+#ifndef _FILE_OFFSET_BITS
+#define _FILE_OFFSET_BITS 64
+#endif
+#endif
+
+#include <openssl/bio.h>
+
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <openssl/buf.h>
+#include <openssl/err.h>
+#include <openssl/mem.h>
+
+
+#define BIO_FP_READ 0x02
+#define BIO_FP_WRITE 0x04
+#define BIO_FP_APPEND 0x08
+
+static FILE *open_file(const char *filename, const char *mode) {
+#if defined(OPENSSL_WINDOWS) && defined(CP_UTF8)
+  int sz, len_0 = (int)strlen(filename) + 1;
+  DWORD flags;
+
+  /* Basically there are three cases to cover: a) filename is pure ASCII
+   * string; b) actual UTF-8 encoded string and c) locale-ized string, i.e. one
+   * containing 8-bit characters that are meaningful in current system locale.
+   * If filename is pure ASCII or real UTF-8 encoded string,
+   * MultiByteToWideChar succeeds and _wfopen works. If filename is locale-ized
+   * string, chances are that MultiByteToWideChar fails reporting
+   * ERROR_NO_UNICODE_TRANSLATION, in which case we fall back to fopen... */
+  if ((sz = MultiByteToWideChar(CP_UTF8, (flags = MB_ERR_INVALID_CHARS),
+                                filename, len_0, NULL, 0)) > 0 ||
+      (GetLastError() == ERROR_INVALID_FLAGS &&
+       (sz = MultiByteToWideChar(CP_UTF8, (flags = 0), filename, len_0, NULL,
+                                 0)) > 0)) {
+    WCHAR wmode[8];
+    WCHAR *wfilename = _alloca(sz * sizeof(WCHAR));
+
+    if (MultiByteToWideChar(CP_UTF8, flags, filename, len_0, wfilename, sz) &&
+        MultiByteToWideChar(CP_UTF8, 0, mode, strlen(mode) + 1, wmode,
+                            sizeof(wmode) / sizeof(wmode[0])) &&
+        (file = _wfopen(wfilename, wmode)) == NULL &&
+        (errno == ENOENT ||
+         errno == EBADF)) /* UTF-8 decode succeeded, but no file, filename
+                           * could still have been locale-ized... */
+      return fopen(filename, mode);
+  } else if (GetLastError() == ERROR_NO_UNICODE_TRANSLATION) {
+    return fopen(filename, mode);
+  }
+#else
+  return fopen(filename, mode);
+#endif
+}
+
+BIO *BIO_new_file(const char *filename, const char *mode) {
+  BIO *ret;
+  FILE *file;
+
+  file = open_file(filename, mode);
+  if (file == NULL) {
+    OPENSSL_PUT_SYSTEM_ERROR(fopen);
+
+    ERR_add_error_data(5, "fopen('", filename, "','", mode, "')");
+    if (errno == ENOENT) {
+      OPENSSL_PUT_ERROR(BIO, BIO_R_NO_SUCH_FILE);
+    } else {
+      OPENSSL_PUT_ERROR(BIO, BIO_R_SYS_LIB);
+    }
+    return NULL;
+  }
+
+  ret = BIO_new(BIO_s_file());
+  if (ret == NULL) {
+    fclose(file);
+    return NULL;
+  }
+
+  BIO_set_fp(ret, file, BIO_CLOSE);
+  return ret;
+}
+
+BIO *BIO_new_fp(FILE *stream, int close_flag) {
+  BIO *ret = BIO_new(BIO_s_file());
+
+  if (ret == NULL) {
+    return NULL;
+  }
+
+  BIO_set_fp(ret, stream, close_flag);
+  return ret;
+}
+
+static int file_new(BIO *bio) { return 1; }
+
+static int file_free(BIO *bio) {
+  if (bio == NULL) {
+    return 0;
+  }
+
+  if (!bio->shutdown) {
+    return 1;
+  }
+
+  if (bio->init && bio->ptr != NULL) {
+    fclose(bio->ptr);
+    bio->ptr = NULL;
+  }
+  bio->init = 0;
+
+  return 1;
+}
+
+static int file_read(BIO *b, char *out, int outl) {
+  if (!b->init) {
+    return 0;
+  }
+
+  size_t ret = fread(out, 1, outl, (FILE *)b->ptr);
+  if (ret == 0 && ferror((FILE *)b->ptr)) {
+    OPENSSL_PUT_SYSTEM_ERROR(fread);
+    OPENSSL_PUT_ERROR(BIO, ERR_R_SYS_LIB);
+    return -1;
+  }
+
+  /* fread reads at most |outl| bytes, so |ret| fits in an int. */
+  return (int)ret;
+}
+
+static int file_write(BIO *b, const char *in, int inl) {
+  int ret = 0;
+
+  if (!b->init) {
+    return 0;
+  }
+
+  ret = fwrite(in, inl, 1, (FILE *)b->ptr);
+  if (ret > 0) {
+    ret = inl;
+  }
+  return ret;
+}
+
+static long file_ctrl(BIO *b, int cmd, long num, void *ptr) {
+  long ret = 1;
+  FILE *fp = (FILE *)b->ptr;
+  FILE **fpp;
+  char p[4];
+
+  switch (cmd) {
+    case BIO_CTRL_RESET:
+      num = 0;
+    case BIO_C_FILE_SEEK:
+      ret = (long)fseek(fp, num, 0);
+      break;
+    case BIO_CTRL_EOF:
+      ret = (long)feof(fp);
+      break;
+    case BIO_C_FILE_TELL:
+    case BIO_CTRL_INFO:
+      ret = ftell(fp);
+      break;
+    case BIO_C_SET_FILE_PTR:
+      file_free(b);
+      b->shutdown = (int)num & BIO_CLOSE;
+      b->ptr = ptr;
+      b->init = 1;
+      break;
+    case BIO_C_SET_FILENAME:
+      file_free(b);
+      b->shutdown = (int)num & BIO_CLOSE;
+      if (num & BIO_FP_APPEND) {
+        if (num & BIO_FP_READ) {
+          BUF_strlcpy(p, "a+", sizeof(p));
+        } else {
+          BUF_strlcpy(p, "a", sizeof(p));
+        }
+      } else if ((num & BIO_FP_READ) && (num & BIO_FP_WRITE)) {
+        BUF_strlcpy(p, "r+", sizeof(p));
+      } else if (num & BIO_FP_WRITE) {
+        BUF_strlcpy(p, "w", sizeof(p));
+      } else if (num & BIO_FP_READ) {
+        BUF_strlcpy(p, "r", sizeof(p));
+      } else {
+        OPENSSL_PUT_ERROR(BIO, BIO_R_BAD_FOPEN_MODE);
+        ret = 0;
+        break;
+      }
+      fp = open_file(ptr, p);
+      if (fp == NULL) {
+        OPENSSL_PUT_SYSTEM_ERROR(fopen);
+        ERR_add_error_data(5, "fopen('", ptr, "','", p, "')");
+        OPENSSL_PUT_ERROR(BIO, ERR_R_SYS_LIB);
+        ret = 0;
+        break;
+      }
+      b->ptr = fp;
+      b->init = 1;
+      break;
+    case BIO_C_GET_FILE_PTR:
+      /* the ptr parameter is actually a FILE ** in this case. */
+      if (ptr != NULL) {
+        fpp = (FILE **)ptr;
+        *fpp = (FILE *)b->ptr;
+      }
+      break;
+    case BIO_CTRL_GET_CLOSE:
+      ret = (long)b->shutdown;
+      break;
+    case BIO_CTRL_SET_CLOSE:
+      b->shutdown = (int)num;
+      break;
+    case BIO_CTRL_FLUSH:
+      ret = 0 == fflush((FILE *)b->ptr);
+      break;
+    case BIO_CTRL_WPENDING:
+    case BIO_CTRL_PENDING:
+    default:
+      ret = 0;
+      break;
+  }
+  return ret;
+}
+
+static int file_gets(BIO *bp, char *buf, int size) {
+  int ret = 0;
+
+  if (size == 0) {
+    return 0;
+  }
+
+  if (!fgets(buf, size, (FILE *)bp->ptr)) {
+    buf[0] = 0;
+    goto err;
+  }
+  ret = strlen(buf);
+
+err:
+  return ret;
+}
+
+static int file_puts(BIO *bp, const char *str) {
+  return file_write(bp, str, strlen(str));
+}
+
+static const BIO_METHOD methods_filep = {
+    BIO_TYPE_FILE, "FILE pointer", file_write, file_read, file_puts,
+    file_gets,     file_ctrl,      file_new,   file_free, NULL, };
+
+const BIO_METHOD *BIO_s_file(void) { return &methods_filep; }
+
+
+int BIO_get_fp(BIO *bio, FILE **out_file) {
+  return BIO_ctrl(bio, BIO_C_GET_FILE_PTR, 0, (char*) out_file);
+}
+
+int BIO_set_fp(BIO *bio, FILE *file, int close_flag) {
+  return BIO_ctrl(bio, BIO_C_SET_FILE_PTR, close_flag, (char *) file);
+}
+
+int BIO_read_filename(BIO *bio, const char *filename) {
+  return BIO_ctrl(bio, BIO_C_SET_FILENAME, BIO_CLOSE | BIO_FP_READ,
+                  (char *)filename);
+}
+
+int BIO_write_filename(BIO *bio, const char *filename) {
+  return BIO_ctrl(bio, BIO_C_SET_FILENAME, BIO_CLOSE | BIO_FP_WRITE,
+                  (char *)filename);
+}
+
+int BIO_append_filename(BIO *bio, const char *filename) {
+  return BIO_ctrl(bio, BIO_C_SET_FILENAME, BIO_CLOSE | BIO_FP_APPEND,
+                  (char *)filename);
+}
+
+int BIO_rw_filename(BIO *bio, const char *filename) {
+  return BIO_ctrl(bio, BIO_C_SET_FILENAME,
+                  BIO_CLOSE | BIO_FP_READ | BIO_FP_WRITE, (char *)filename);
+}